Prude - One who is excessively concerned with being or appearing to be proper, modest, or righteous.
or, a definition that fits an example of Ydoll perfectly -
prude
A person who's Superego overwhelms their Id.
How cute: sadly though, I have to tell you you have missed the point.
That first def of prude is OK - providing you realize that it means 'proper, modest, righteous' in a sexual purity sense. Prudes don't like to use or hear swearing, even of very mild sorts. They don't like clothing that reveals what they consider too much flesh, or clothing that is provocative sexually. They don't like behavior that is in the least lewd, 'immoral' sexually, etc. I doubt if George was a prude in these senses.
He was certainly a 'righteous' man, in the sense of being sure of what is a (a, not the, note) correct pathway to 'god'. Righteous has lots of meanings, but trying to apply 'prude' to George via one of the other meanings of righteous is intellectually dishonest.
As to the other definition
A person who's Superego overwhelms their Id.
, I wonder if you actually know what it means? If a person's 'superego' overwhelms their 'id', that simply means that their 'moral conscience' prohibits their 'basic instincts'. It's a Freudian idea, this id/ego/superego thing. A Freudian would possibly agree that a prude IS such a person.
But in reckoning that the definition could apply to me, clearly you have made the schoolboy mistake of thinking that the 'super' in 'superego' means big, or bloated. It doesn't - it means simply 'above'. So superego means above self (= ego).
There ya go, mate!